The keepers acquire opposite polarity and keep the dipoles in a closed loop retaining their magnetic strength
john3 answered the question on October 20, 2017 at 03:45
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State the reason why mercury is used in thermometer and not water
(Solved)
State the reason why mercury is used in thermometer and not water
Date posted:
October 19, 2017
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Answers (1)
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A block of lead of density 11.3g/cm^3 measures 10 cm x 6cm x 4cm, given that the force of gravity is 10 Nkg^-1. Determine...
(Solved)
A block of lead of density 11.3g/cm^3 measures 10 cm x 6cm x 4cm, given that the force of gravity is 10 Nkg^-1. Determine
a. The maximum pressure
b. The minimum pressure that it can exert on a horizontal surface.
Date posted:
October 18, 2017
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Answers (1)
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The density of mercury is 13600 kg/m^3. Determine the liquid pressure at a point 70 cm under the surface of the mercury. (take g =10...
(Solved)
The density of mercury is 13600 kg/m^3. Determine the liquid pressure at a point 70 cm under the surface of the mercury. (take g =10 N/kg)
Date posted:
October 18, 2017
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Answers (1)
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A diver is 20 m below the surface of water in the sea. If the density of water is 1000 kg/m^3, determine the pressure due...
(Solved)
A diver is 20 m below the surface of water in the sea. If the density of water is 1000 kg/m^3, determine the pressure due to the water on the diver. (take g= 10 N kg^-1)
Date posted:
October 18, 2017
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Answers (1)
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9. How much force must be applied on a knife of length 15 cm, thickness 0.01mm to a pressure of 10000000pa?
(Solved)
9. How much force must be applied on a knife of length 15 cm, thickness 0.01mm to a pressure of 10000000pa?
Date posted:
October 18, 2017
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Answers (1)
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A student standing upright exerts a pressure of 27200Nm^-2 on the floor. Given that the total area of contact of shoes and the...
(Solved)
A student standing upright exerts a pressure of 27200Nm^-2 on the floor. Given that the total area of contact of shoes and the floor is 0.0736 m^2.
a. Determine the mass of the student.
b. Determine the pressure the student would exert on the floor when stand on one foot.
Date posted:
October 18, 2017
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Answers (1)
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A force of 1000 N is applied to an area of 10000 mm^2. What is the pressure exerted on the area in pascals?
(Solved)
A force of 1000 N is applied to an area of 10000 mm^2. What is the pressure exerted on the area in pascals?
Date posted:
October 18, 2017
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Answers (1)
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A woman of mass 90 kg stands upright on a tile floor. If the area of contact of her shoes and floor is 300 cm^2,...
(Solved)
A woman of mass 90 kg stands upright on a tile floor. If the area of contact of her shoes and floor is 300 cm^2, determine the average pressure she exerts on the floor. (Take g=10 N kg^-1)
Date posted:
October 18, 2017
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Answers (1)
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The mass of space shuttle was found to be 500 kg. If it weight is 10000 N gravitational field strength of the planet.
(Solved)
The mass of space shuttle was found to be 500 kg. If it weight is 10000 N gravitational field strength of the planet.
Date posted:
October 18, 2017
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Answers (1)
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An astronaut weighs 1000 N on earth. On moon, he weight 200 N. Calculate the moon’s gravitational strength. (take g= 10 N kg^-1)
(Solved)
An astronaut weighs 1000 N on earth. On moon, he weight 200 N. Calculate the moon’s gravitational strength. (take g= 10 N kg^-1)
Date posted:
October 18, 2017
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Answers (1)
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State a property of electromagnetic wave on which the operation of a radar system is based
(Solved)
State a property of electromagnetic wave on which the operation of a radar system is based
Date posted:
October 17, 2017
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Answers (1)
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State two conditions necessary for the occurrence of an annular eclipse ...
(Solved)
State two conditions necessary for the occurrence of an annular eclipse
Date posted:
October 17, 2017
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Answers (1)
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Why does a gun recoil when it is fired?
(Solved)
Why does a gun recoil when it is fired?
Date posted:
October 17, 2017
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Answers (1)
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State the difference between an ideal and real gas
(Solved)
State the difference between an ideal and real gas
Date posted:
October 17, 2017
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Answers (1)
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Explain why it is possible to compress gases but not solid or liquid
(Solved)
Explain why it is possible to compress gases but not solid or liquid
Date posted:
October 17, 2017
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Answers (1)
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Explain how heat demagnetizes a magnet.
(Solved)
Explain how heat demagnetizes a magnet.
Date posted:
October 17, 2017
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Answers (1)
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What is the angle of deviation
(Solved)
What is the angle of deviation
Date posted:
October 17, 2017
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Answers (1)
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Define the following terms as used in sound.1. Pitch 2. Intensity
(Solved)
Define the following terms as used in sound.
1. Pitch
2. Intensity
Date posted:
October 17, 2017
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Answers (1)
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State two differences between heat and temperature.
(Solved)
State two differences between heat and temperature.
Date posted:
October 17, 2017
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Answers (1)
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Explain why a nail rubbed with oil penetrates timber easily when hammered than a dry nail.
(Solved)
Explain why a nail rubbed with oil penetrates timber easily when hammered than a dry nail.
Date posted:
October 17, 2017
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Answers (1)